A new $20 million commuter rail train station on the Worcester-Framingham MBTA line, built next to I-90, was hailed Wednesday as a "change agent" by the man who pitched in to pay for it: Jim Davis, founder and chairman of New Balance.

Called Boston Landing, the station is next to New Balance's world headquarters in in the city's Allston-Brighton neighborhood, which is seeing the Bruins and Celtics move practice facilities to the area, along with 295 residences, a 175-room hotel and retail space. The development next to the station bears the same name, Boston Landing.

New Balance will also cover all maintenance costs of the station for 10 years.

Davis called the 15-acre area the "western gateway to the city of Boston" and said it will be attractive to Millennials.

Allston-Brighton is going to be "the next Brooklyn," Davis said before he joined Gov. Charlie Baker, Lt. Gov. Karyn Polito and state transportation officials for a ribbon-cutting ceremony to celebrate the new commuter rail station.

The station opens on Monday, May 22, the same day new train schedules go into effect. Construction first started in 2015.

Baker's transportation secretary, Stephanie Pollack, said the new station puts Allston-Brighton within walking distance of rail transit for the first time in 50 years. The cost of train ride is $2.25 to and from South Station, same as a subway ticket.

Boston Mayor Marty Walsh, who attended the ribbon-cutting, pointed to the Bruins and Celtics moving their practice facilities to the area.

"It shows this community is a place where people want to be," he said.

The new station also led to the replacement of more than 50,000 rail ties and the reduction of heat-related speed restrictions on the Worcester-Framingham Line, transportation officials said.

Skanska USA managed the construction of the station, which is the "greenest" MBTA station above ground, the company said, pointing to local sourcing of materials and subcontractors, as well as their on-site recycling of materials.

The company saw work safety challenges in constructing a station sitting on a fully operational commuter rail line, according to Paul Pedini, vice president of operations.

"What we tried to do to surmount those issues is to relocate the existing train track over towards Mass. Pike," he said after the ribbon-cutting.

"It did two things: It took the live rail away from the work zone, so we could work more or less unimpeded from the affects of the trains that were passing," he added. "But it also segregated the live trains from the workers who were involved with construction, and it created a much safer work zone for our people. And it allowed us to work faster."

The end result, Pedini said, is now both tracks are live in both directions, a boon for the commuter rail line as well as the neighborhood, which has a double track for the first time in 50 years.